Got the filter. It's a thin piece of multi-coated glass that is easily applied to the camera and covers the lens opening. So far, no obvious effects on images. I don't generally include point sources of light in my images, so the occasional extra flare, if there, is not much concern. If you are the type who buys protective filters for your lenses, then this filter makes sense. Having said that, I have yet to scratch the lens of any P&S cameras I own, but I'm quite fond of the EX1/TL500 and figured protecting its lens was worthwhile.